{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "264294e9",
   "metadata": {},
   "source": [
    "-----\n",
    "* 时间：2022.10.25/week10\n",
    "* 记录人：zr"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "70967a69",
   "metadata": {},
   "source": [
    "# 上周回顾\n",
    "> 1.while循环：while True无限循环\n",
    ">> 1. 指定次数，whileTrue可以实现for循环的指定次数，增加一个count计数器即可\n",
    ">> 2. while True 一般与用户输入一起使用 让用户可以重复输入 知道某些条件成立结束输入（购物车）\n",
    "> 2.购物车实践（平时作业）\n",
    "# 本周内容\n",
    "1.元组  \n",
    "2.集合  \n",
    "3.内容  "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "0d5eda75",
   "metadata": {},
   "source": [
    "# 1.元组（tuple）\n",
    "\n",
    "> 1.元组的基本内容（形态、定义）\n",
    "> 2.元组的性质\n",
    ">> 1.有序性（indexing，sliceing）  \n",
    ">> 2.<font color=\"red\">**不可变性**</font> ,元组没有增删改\n",
    "\n",
    "> 3.元组的一般方法  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "669f1235",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1800001, 1800002, 1800003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网三_学号 = (1800001,1800002,1800003)\n",
    "print(网三_学号,type(网三_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "cb5992d0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1900001, 1900002, 1900003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网二_学号 = 1900001,1900002,1900003\n",
    "print(网二_学号,type(网二_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "58182424",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1900001"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "2a7c12d4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(1900002, 1900003)"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[1:]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "7d799ebf",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=25, tm_hour=15, tm_min=6, tm_sec=8, tm_wday=1, tm_yday=298, tm_isdst=0)"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 元组的实际案例\n",
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "5e7088e2",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on struct_time object:\n",
      "\n",
      "class struct_time(builtins.tuple)\n",
      " |  struct_time(iterable=(), /)\n",
      " |  \n",
      " |  The time value as returned by gmtime(), localtime(), and strptime(), and\n",
      " |  accepted by asctime(), mktime() and strftime().  May be considered as a\n",
      " |  sequence of 9 integers.\n",
      " |  \n",
      " |  Note that several fields' values are not the same as those defined by\n",
      " |  the C language standard for struct tm.  For example, the value of the\n",
      " |  field tm_year is the actual year, not year - 1900.  See individual\n",
      " |  fields' descriptions for details.\n",
      " |  \n",
      " |  Method resolution order:\n",
      " |      struct_time\n",
      " |      builtins.tuple\n",
      " |      builtins.object\n",
      " |  \n",
      " |  Methods defined here:\n",
      " |  \n",
      " |  __reduce__(...)\n",
      " |      Helper for pickle.\n",
      " |  \n",
      " |  __repr__(self, /)\n",
      " |      Return repr(self).\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Static methods defined here:\n",
      " |  \n",
      " |  __new__(*args, **kwargs) from builtins.type\n",
      " |      Create and return a new object.  See help(type) for accurate signature.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data descriptors defined here:\n",
      " |  \n",
      " |  tm_gmtoff\n",
      " |      offset from UTC in seconds\n",
      " |  \n",
      " |  tm_hour\n",
      " |      hours, range [0, 23]\n",
      " |  \n",
      " |  tm_isdst\n",
      " |      1 if summer time is in effect, 0 if not, and -1 if unknown\n",
      " |  \n",
      " |  tm_mday\n",
      " |      day of month, range [1, 31]\n",
      " |  \n",
      " |  tm_min\n",
      " |      minutes, range [0, 59]\n",
      " |  \n",
      " |  tm_mon\n",
      " |      month of year, range [1, 12]\n",
      " |  \n",
      " |  tm_sec\n",
      " |      seconds, range [0, 61])\n",
      " |  \n",
      " |  tm_wday\n",
      " |      day of week, range [0, 6], Monday is 0\n",
      " |  \n",
      " |  tm_yday\n",
      " |      day of year, range [1, 366]\n",
      " |  \n",
      " |  tm_year\n",
      " |      year, for example, 1993\n",
      " |  \n",
      " |  tm_zone\n",
      " |      abbreviation of timezone name\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data and other attributes defined here:\n",
      " |  \n",
      " |  n_fields = 11\n",
      " |  \n",
      " |  n_sequence_fields = 9\n",
      " |  \n",
      " |  n_unnamed_fields = 0\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __add__(self, value, /)\n",
      " |      Return self+value.\n",
      " |  \n",
      " |  __contains__(self, key, /)\n",
      " |      Return key in self.\n",
      " |  \n",
      " |  __eq__(self, value, /)\n",
      " |      Return self==value.\n",
      " |  \n",
      " |  __ge__(self, value, /)\n",
      " |      Return self>=value.\n",
      " |  \n",
      " |  __getattribute__(self, name, /)\n",
      " |      Return getattr(self, name).\n",
      " |  \n",
      " |  __getitem__(self, key, /)\n",
      " |      Return self[key].\n",
      " |  \n",
      " |  __getnewargs__(self, /)\n",
      " |  \n",
      " |  __gt__(self, value, /)\n",
      " |      Return self>value.\n",
      " |  \n",
      " |  __hash__(self, /)\n",
      " |      Return hash(self).\n",
      " |  \n",
      " |  __iter__(self, /)\n",
      " |      Implement iter(self).\n",
      " |  \n",
      " |  __le__(self, value, /)\n",
      " |      Return self<=value.\n",
      " |  \n",
      " |  __len__(self, /)\n",
      " |      Return len(self).\n",
      " |  \n",
      " |  __lt__(self, value, /)\n",
      " |      Return self<value.\n",
      " |  \n",
      " |  __mul__(self, value, /)\n",
      " |      Return self*value.\n",
      " |  \n",
      " |  __ne__(self, value, /)\n",
      " |      Return self!=value.\n",
      " |  \n",
      " |  __rmul__(self, value, /)\n",
      " |      Return value*self.\n",
      " |  \n",
      " |  count(self, value, /)\n",
      " |      Return number of occurrences of value.\n",
      " |  \n",
      " |  index(self, value, start=0, stop=9223372036854775807, /)\n",
      " |      Return first index of value.\n",
      " |      \n",
      " |      Raises ValueError if the value is not present.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Class methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __class_getitem__(...) from builtins.type\n",
      " |      See PEP 585\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(time.localtime())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "d5998521",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [1, 2, 3, 4]) <class 'tuple'> 2399557629504\n",
      "[1, 2, 3, 4] 2399557629504\n"
     ]
    }
   ],
   "source": [
    "tuple_test = ([1,2,3,4],[1,2,3,4])\n",
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "b85f802c",
   "metadata": {},
   "outputs": [],
   "source": [
    "tuple_test[0].append(100)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "f903f651",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4, 100], [1, 2, 3, 4]) <class 'tuple'> 2399557629504\n",
      "[1, 2, 3, 4, 100] 2399557629504\n"
     ]
    }
   ],
   "source": [
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "06f20131",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 一般情况下，元组里面存放的是常量（不可变），何为常量：数字，字符串\n",
    "# 不存放变量 如列表，字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "b5d60956",
   "metadata": {},
   "source": [
    "## 2. 集合（sets）\n",
    "> 1.集合的基本概念\n",
    ">> 1.性质：没有重复项;无序性\n",
    "> 2.集合的一般方法\n",
    ">>1.运算：&，|\n",
    ">>2.一般方法:intersection"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "id": "b1487c79",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['apple', 'orange', 'orange']\n",
      "{'orange', 'apple', 'pear'}\n"
     ]
    }
   ],
   "source": [
    "basket_lists = ['apple','orange','orange']\n",
    "basket_sets = {'apple','orange','orange','pear'}\n",
    "print(basket_lists)\n",
    "print(basket_sets)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "b6fb559e",
   "metadata": {},
   "outputs": [],
   "source": [
    "舞蹈社 = {1801,1802,1803.1809,1811}\n",
    "电竞社 = {1808,1822,1802,1801,1899}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "36316558",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 & 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "07f5475a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 23,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.intersection(电竞社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "b9884ee9",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803.1809, 1808, 1811, 1822, 1899}"
      ]
     },
     "execution_count": 24,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 | 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "cbd53b13",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "7"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "len(舞蹈社 | 电竞社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "13543e1a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803.1809, 1808, 1811, 1822, 1899}"
      ]
     },
     "execution_count": 26,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.union(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "b74b7fce",
   "metadata": {},
   "source": [
    "# 3.字典 （dict）\n",
    "\n",
    ">1.字典的基本概念\n",
    ">>1.字典性质：\n",
    ">>>1.无序性\n",
    ">>>2.keys是不可变的:就像列表、字符串等有序的数据结构 它的index不可变是一样的  \n",
    ">>>3.keys是唯一的  \n",
    ">>2.字典的形态 \n",
    "\n",
    ">2.字典的一般方法  \n",
    ">>1.字典的创造  \n",
    ">> 2.字典的函数和方法  \n",
    ">>> 增加、删除、修改"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "176ee1bc",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新二班 = {\n",
    "    1800001:\"李毅\",\n",
    "    1800002:\"jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"Jay\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "bb5d5296",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李毅', 1800002: 'jack', 1800003: 'Marry', 1800004: 'Jay'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "print(网新二班,type(网新二班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "f00568a7",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 因为学号是唯一的，可以作为字典的key"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "8daf62f2",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李毅', 1800002: 'jack', 1800003: 'Marry', 1800004: 'Jay', 1800005: 'jack'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "网新三班 = {\n",
    "    1800001:\"李毅\",\n",
    "    1800002:\"jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"Jay\",\n",
    "    1800005:\"jack\"\n",
    "}\n",
    "print(网新三班,type(网新三班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "99cb2d8a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Jay'"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 字典的取值：通过keys进行字典的取值，unlike列表和元组通过index取值\n",
    "网新三班[1800004]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "id": "d1af8b46",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新三班 = {\n",
    "    1800001:[\"李毅\",\"广州\",\"男\",19,\"聊天记录\",\"朋友圈\"],\n",
    "    1800002:\"jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"Jay\",\n",
    "    1800005:\"jack\"\n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "id": "b7abea30",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['李毅', '广州', '男', 19, '聊天记录', '朋友圈']"
      ]
     },
     "execution_count": 42,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新三班[1800001]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "c6bcda58",
   "metadata": {},
   "outputs": [],
   "source": [
    "## 3.2 字典的一般方法\n",
    "\n",
    "* 1.按照字典的形式直接创建（key：value）\n",
    "---\n",
    "网新四班 = {\n",
    "    1800001:\"李毅\",\n",
    "    1800002:\"jack\",\n",
    "    1800003:\"Marry\",\n",
    "    1800004:\"Jay\"\n",
    "}\n",
    "---\n",
    "* 2.使用dict()方法创建字典\n",
    "* 3.使用字典增加的方法创建字典"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "5d7450b6",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用dict()方法创建字典\n",
    "网新四班 = dict(\n",
    "    stu1800001=\"李毅\",\n",
    "    stu1800002=\"jack\",\n",
    "    stu1800003=\"Marry\",\n",
    "    stu1800004=\"Jay\",)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 46,
   "id": "0955b3c3",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李毅',\n",
       " 'stu1800002': 'jack',\n",
       " 'stu1800003': 'Marry',\n",
       " 'stu1800004': 'Jay'}"
      ]
     },
     "execution_count": 46,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新四班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "id": "246777ef",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用字典增加的方法创建字典：dict[key] = value\n",
    "\n",
    "网新一班 = {}\n",
    "网新一班[\"stu180001\"] = '李毅'\n",
    "网新一班[\"stu180002\"] = 'jack'\n",
    "网新一班[\"stu180003\"] = 'Marry'\n",
    "网新一班[\"stu180004\"] = 'Jay'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 48,
   "id": "49540f9c",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu180001': '李毅'}"
      ]
     },
     "execution_count": 48,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "id": "d3522da6",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新一班_keys = [\"stu180001\",\"stu180002\",\"stu18003\",\"stu180004\"]\n",
    "网新一班_values = ['李毅','jack','Marry','Jay']\n",
    "网新一班 = {}\n",
    "for i in range(4):\n",
    "    网新一班[网新一班_keys[i]] = 网新一班_values[i]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 51,
   "id": "9c36fe83",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu180001': '李毅',\n",
       " 'stu180002': 'jack',\n",
       " 'stu18003': 'Marry',\n",
       " 'stu180004': 'Jay'}"
      ]
     },
     "execution_count": 51,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "d37fb03e",
   "metadata": {},
   "outputs": [],
   "source": [
    "## 课后作业\n",
    ">1.字典的笔记练习\n",
    ">2.方法预习"
   ]
  }
 ],
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